Power line chokes
Current-compensated ring core double chokes
250 V AC, 0.2 47 mH, 0.3 6 A, +40 C / + 50 C / +60 C / +70 C
Series/Type: B82721A/J/K
Date: October 2016
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EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS prior express consent is prohibited.
EPCOS AG is a TDK Group Company. Power line chokes B82721A/J/K
Current-compensated ring core double chokes
Rated voltage 250 V AC
Rated inductance 0.2 ... 47 mH
Rated current 0.3 ... 6 A / +40 C, +50 C, +60 C, +70 C
Construction
Current-compensated ring core double choke
Ferrite core wih epoxy coating (UL 94 V-0)
Plastic case (UL 94 V-0)
B82721A
Potting (UL 94 V-0)
Sector winding
Features
High resonance frequency due to special winding technique
Approx. 1% stray inductance for symmetrical interference suppression
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2) and UL 1283
1)
UL and /or ENEC (VDE) approvals
2)
Construction approved to EN 60335-1 (VDE 0700-1)
RoHS-compatible
B82721J
Applications
Suppression of common-mode interferences
Switch-mode power applications
Electronic ballasts in lamps
Power inverters
Terminals
Base material CuNi18Zn20
Layer composition Ni, Sn
Hot-dipped
Pins 0.7 u 0.7 (mm)
B82721K
Lead spacing 10 u 5 (mm) or 10 u 15 (mm)
Marking
Product brand, approval signs and VDE standard number, ordering code, graphic symbol, rated
current, rated voltage, rated inductance, date of manufacture (YYWWD.internal ID code)
Delivery mode
Blister tray in cardboard box
1) UL approval with 300 V AC
2) Certified values:
Glow wire test (GWT to IEC 60695-2-11): +750 C, 2 s / +850 C, 30 s
Ball pressure test (BP to IEC 60695-10-2): +125 C
Please read Cautions and warnings and
2 10/16
Important notes at the end of this document.